Somebody save my CPU. made with Krita™

  • Armand1@lemmy.world
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    1 day ago

    That’s more or less what I’m saying yes, I do like the original film grain look of movies, and often attempts to remove it removed detail, making things look smudgy.

    As for if no codec is designed for this, Blu-Rays preserve film grain, often very well, and they use x265. Granted they do this partially by brute force by having a bit rate of 30mbps+, but I’ve found that you can quite easily reduce that but rate to 12mbps and still preserve most film grain reasonably well. Especially if you use h265, the CPU version (NVENC is nowhere near as good with grain).

    By comparison, with my brief stint with AV1 I found even maxing out the settings did not seem to preserve film grain. I guess the codec is inherently heavy handed, which is fine for what it’s intended for.

    On film grain movies x264 can work, but then you typically need 20-50% more space for the same quality.

    • brucethemoose@lemmy.world
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      1 day ago

      Yeah, it does feel like AV1 is tuned for higher compression. Hence its explicitly designed to try and denoise the grain away then replicate it.

      To be clear, I’m with Pyro here (I just denoise grain away with a BM3D-V prefilter), but TBH I’d rather keep the raw rips at such high bitrates anyway.